(Table 1) Organic carbon and hydrogen index data for sediment samples from ODP Site 105-645
The extractable organic matter in Holocene to early Miocene deep-sea sediments from Site 645 (ODP Leg 105) in Baffin Bay contains almost exclusively biological markers of terrigenous origin. Pentacyclic triterpenoids of the alpha-(ursene) and beta-amyrin (oleanene) type often occur as the most abund...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.707415 2024-09-15T17:56:57+00:00 (Table 1) Organic carbon and hydrogen index data for sediment samples from ODP Site 105-645 ten Haven, H Lo Rullkötter, Jürgen MEDIAN LATITUDE: 70.457467 * MEDIAN LONGITUDE: -64.655167 * SOUTH-BOUND LATITUDE: 70.457200 * WEST-BOUND LONGITUDE: -64.656200 * NORTH-BOUND LATITUDE: 70.458000 * EAST-BOUND LONGITUDE: -64.654300 * DATE/TIME START: 1985-09-05T13:25:00 * DATE/TIME END: 1985-09-27T20:30:00 * MINIMUM DEPTH, sediment/rock: 43.6 m * MAXIMUM DEPTH, sediment/rock: 1125.8 m 1988 text/tab-separated-values, 88 data points https://doi.pangaea.de/10.1594/PANGAEA.707415 https://doi.org/10.1594/PANGAEA.707415 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.707415 https://doi.org/10.1594/PANGAEA.707415 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: ten Haven, H Lo; Rullkötter, Jürgen (1988): The diagenetic fate of taraxer-14-ene and oleanene isomers. Geochimica et Cosmochimica Acta, 52(10), 2543-2548, https://doi.org/10.1016/0016-7037(88)90312-2 105-645B 105-645D 105-645E Baffin Bay Carbon organic total Carbon analyser LECO DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Epoch Event label Hydrogen index mass HC per unit mass total organic carbon Joides Resolution Leg105 Ocean Drilling Program ODP Sample code/label dataset 1988 ftpangaea https://doi.org/10.1594/PANGAEA.70741510.1016/0016-7037(88)90312-2 2024-07-24T02:31:30Z The extractable organic matter in Holocene to early Miocene deep-sea sediments from Site 645 (ODP Leg 105) in Baffin Bay contains almost exclusively biological markers of terrigenous origin. Pentacyclic triterpenoids of the alpha-(ursene) and beta-amyrin (oleanene) type often occur as the most abundant compounds in the aliphatic hydrocarbon, ketone and alcohol fractions of the sediment extract. A specific diagenetic reaction involves the conversion of taraxer-14-ene into olean-12-ene in the upper 700 metres of the sedimentary sequence. The taraxerene-to-oleanene conversion is complete before the onset of isomerisation of diasterenes at C-20. In the sediment as well as in laboratory simulation experiments, olean-12-ene further isomerises to olean-13(18)-ene and olean-18-ene, the latter of which may be the direct precursor of 18beta(H)- and 18alpha(H)-oleanane found in sediments containing more mature organic matter and in crude oils. The subsurface interconversion of these triterpenoid skeletons indicate that oleanane does not necessarily start life as an oleanoid. Dataset Baffin Bay Baffin Bay Baffin PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-64.656200,-64.654300,70.458000,70.457200) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
105-645B 105-645D 105-645E Baffin Bay Carbon organic total Carbon analyser LECO DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Epoch Event label Hydrogen index mass HC per unit mass total organic carbon Joides Resolution Leg105 Ocean Drilling Program ODP Sample code/label |
spellingShingle |
105-645B 105-645D 105-645E Baffin Bay Carbon organic total Carbon analyser LECO DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Epoch Event label Hydrogen index mass HC per unit mass total organic carbon Joides Resolution Leg105 Ocean Drilling Program ODP Sample code/label ten Haven, H Lo Rullkötter, Jürgen (Table 1) Organic carbon and hydrogen index data for sediment samples from ODP Site 105-645 |
topic_facet |
105-645B 105-645D 105-645E Baffin Bay Carbon organic total Carbon analyser LECO DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Epoch Event label Hydrogen index mass HC per unit mass total organic carbon Joides Resolution Leg105 Ocean Drilling Program ODP Sample code/label |
description |
The extractable organic matter in Holocene to early Miocene deep-sea sediments from Site 645 (ODP Leg 105) in Baffin Bay contains almost exclusively biological markers of terrigenous origin. Pentacyclic triterpenoids of the alpha-(ursene) and beta-amyrin (oleanene) type often occur as the most abundant compounds in the aliphatic hydrocarbon, ketone and alcohol fractions of the sediment extract. A specific diagenetic reaction involves the conversion of taraxer-14-ene into olean-12-ene in the upper 700 metres of the sedimentary sequence. The taraxerene-to-oleanene conversion is complete before the onset of isomerisation of diasterenes at C-20. In the sediment as well as in laboratory simulation experiments, olean-12-ene further isomerises to olean-13(18)-ene and olean-18-ene, the latter of which may be the direct precursor of 18beta(H)- and 18alpha(H)-oleanane found in sediments containing more mature organic matter and in crude oils. The subsurface interconversion of these triterpenoid skeletons indicate that oleanane does not necessarily start life as an oleanoid. |
format |
Dataset |
author |
ten Haven, H Lo Rullkötter, Jürgen |
author_facet |
ten Haven, H Lo Rullkötter, Jürgen |
author_sort |
ten Haven, H Lo |
title |
(Table 1) Organic carbon and hydrogen index data for sediment samples from ODP Site 105-645 |
title_short |
(Table 1) Organic carbon and hydrogen index data for sediment samples from ODP Site 105-645 |
title_full |
(Table 1) Organic carbon and hydrogen index data for sediment samples from ODP Site 105-645 |
title_fullStr |
(Table 1) Organic carbon and hydrogen index data for sediment samples from ODP Site 105-645 |
title_full_unstemmed |
(Table 1) Organic carbon and hydrogen index data for sediment samples from ODP Site 105-645 |
title_sort |
(table 1) organic carbon and hydrogen index data for sediment samples from odp site 105-645 |
publisher |
PANGAEA |
publishDate |
1988 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.707415 https://doi.org/10.1594/PANGAEA.707415 |
op_coverage |
MEDIAN LATITUDE: 70.457467 * MEDIAN LONGITUDE: -64.655167 * SOUTH-BOUND LATITUDE: 70.457200 * WEST-BOUND LONGITUDE: -64.656200 * NORTH-BOUND LATITUDE: 70.458000 * EAST-BOUND LONGITUDE: -64.654300 * DATE/TIME START: 1985-09-05T13:25:00 * DATE/TIME END: 1985-09-27T20:30:00 * MINIMUM DEPTH, sediment/rock: 43.6 m * MAXIMUM DEPTH, sediment/rock: 1125.8 m |
long_lat |
ENVELOPE(-64.656200,-64.654300,70.458000,70.457200) |
genre |
Baffin Bay Baffin Bay Baffin |
genre_facet |
Baffin Bay Baffin Bay Baffin |
op_source |
Supplement to: ten Haven, H Lo; Rullkötter, Jürgen (1988): The diagenetic fate of taraxer-14-ene and oleanene isomers. Geochimica et Cosmochimica Acta, 52(10), 2543-2548, https://doi.org/10.1016/0016-7037(88)90312-2 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.707415 https://doi.org/10.1594/PANGAEA.707415 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.70741510.1016/0016-7037(88)90312-2 |
_version_ |
1810433163708596224 |